About delivery, I received the product to 1 day before the date expected => impeccable.
Also, my original battery problems asked me: my phone remained on while I did not do action (application launch or phone call).
I received my battery yesterday, I installed it in the phone => 56% load.
Today, more than 12 hours after (having had a 10 minute phone call) the load is 45%.
For now I am very satisfied: remains to be seen over time.